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Solid double-metal inner wall wear-resistant material conveying circular pipe and preparation method thereof

A technology of bimetallic and circular pipes, applied in the field of solid bimetallic inner wall wear-resistant material conveying circular pipes and its preparation, to achieve the effects of high impact toughness, good sealing and corrosion resistance, and high wear resistance

Active Publication Date: 2021-09-21
山西昌达盛精密铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A concrete conveying circular pipe is increased by more than one place, but three or four places, so for a material conveying system consisting of tens or even hundreds of long-distance or super-high-rise buildings with hundreds of meters or even hundreds of meters Added countless dangers

Method used

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  • Solid double-metal inner wall wear-resistant material conveying circular pipe and preparation method thereof
  • Solid double-metal inner wall wear-resistant material conveying circular pipe and preparation method thereof
  • Solid double-metal inner wall wear-resistant material conveying circular pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] In the present Example 1, the metal jacket round pipe is a low carbon 20 rolled seamless steel pipe with a thickness of 2.1 mm.

[0064] The thickness of the metal inner sleeve round tube is: 3.2mm.

[0065] The raw materials for the metal inner sleeve round pipe are prepared according to the following parts by weight: 380 parts of carbon, 2,500 parts of chromium, 100 parts of manganese, 40 parts of molybdenum, 30 parts of nickel, 30 parts of vanadium, 50 parts of copper, 80 parts of silicon, and 80 parts of lanthanum. 3 parts, 3 parts cerium, 3 parts praseodymium, 3 parts neodymium, 3 parts promethium, 3 parts samarium, 3 parts europium, 3 parts gadolinium, 3 parts terbium, 3 parts dysprosium, 3 parts holmium, 3 parts erbium, 3 parts thulium , 3 parts of ytterbium, 3 parts of lutetium, 3 parts of yttrium, 2 parts of scandium, and 6740 parts of iron.

[0066] The preparation process is:

[0067] After mixing the raw materials of the metal inner sleeve round tube, heat...

Embodiment 2

[0073] In this embodiment 2, the metal jacket round pipe is a low carbon 20 rolled seamless steel pipe with a thickness of 2 mm.

[0074] The thickness of the metal inner sleeve round tube is: 3mm.

[0075] The raw materials for the metal inner sleeve round pipe are prepared according to the following parts by weight: 370 parts of carbon, 2,450 parts of chromium, 90 parts of manganese, 35 parts of molybdenum, 25 parts of nickel, 25 parts of vanadium, 40 parts of copper, 70 parts of silicon, and 70 parts of lanthanum. 3 parts, 3 parts cerium, 3 parts praseodymium, 3 parts neodymium, 3 parts promethium, 3 parts samarium, 3 parts europium, 3 parts gadolinium, 3 parts terbium, 3 parts dysprosium, 3 parts holmium, 2 parts erbium, 2 parts thulium , 2 parts of ytterbium, 2 parts of lutetium, 2 parts of yttrium, 2 parts of scandium, 6850 parts of iron.

[0076] The preparation process is:

[0077] After mixing the raw materials of the metal inner sleeve round tube, heat it to 1620 ℃...

Embodiment 3

[0082] In this Example 3, the metal jacket round pipe is a low carbon 20 rolled seamless steel pipe with a thickness of 1.8 mm.

[0083] The thickness of the metal inner sleeve round tube is: 2.8mm.

[0084] The raw materials for the metal inner sleeve round pipe are prepared according to the following parts by weight: 360 parts of carbon, 2,400 parts of chromium, 80 parts of manganese, 30 parts of molybdenum, 20 parts of nickel, 20 parts of vanadium, 30 parts of copper, 60 parts of silicon, and lanthanum 3 parts, 3 parts cerium, 3 parts praseodymium, 3 parts neodymium, 3 parts promethium, 3 parts samarium, 2 parts europium, 2 parts gadolinium, 2 parts terbium, 2 parts dysprosium, 2 parts holmium, 2 parts erbium, 2 parts thulium , 2 parts of ytterbium, 2 parts of lutetium, 2 parts of yttrium, 2 parts of scandium, 6960 parts of iron.

[0085] The preparation process is:

[0086] After mixing the raw materials of the metal inner sleeve round tube, heat it to 1580 ℃ to reach a ...

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Abstract

The invention relates to a solid double-metal inner wall wear-resistant material conveying circular pipe and a preparation method thereof. The preparation method comprises the following steps of heating a metal inner sleeve circular pipe raw material to a molten liquid state, pouring into a casting mold of which the inner surface is coated with a coarse-grained release agent, carrying out centrifugal casting molding, carrying out quenching treatment and tempering treatment to obtain a metal inner sleeve circular pipe with pits on the outer wall surface, coating the outer wall surface of the metal inner sleeve circular pipe with super glue, pressing the metal inner sleeve circular pipe coated with the super glue into a metal outer sleeve circular pipe with knurls on the inner surface and coated with the super glue, and performing cold extrusion to enable the metal outer sleeve circular pipe to shrink and deform so as to tightly hold the metal inner sleeve circular pipe, so that the solid double-metal inner wall wear-resistant material conveying circular pipe is obtained. The solid double-metal inner wall wear-resistant material conveying circular pipe has excellent wear resistance and impact toughness. Particularly, compared with a double-liquid double-metal composite pipeline, the circular pipe is lighter in weight, and has obvious advantages especially for a material conveying system of a long-distance or super high-rise building which needs a light-weight pipeline.

Description

technical field [0001] The invention relates to a solid bimetal inner wall wear-resistant material conveying round pipe and a preparation method thereof, and belongs to the technical field of metal material processing. Background technique [0002] The concrete pumping height of construction machinery is as high as more than 500 meters, and the requirements for the mechanical properties of the pumped circular pipeline are getting higher and higher. At present, the pumping circular pipeline usually adopts bimetal composite circular pipeline. The inner wall part conveys concrete including pebbles, which requires excellent wear resistance and corrosion resistance, while the outer wall part plays the role of rigid support of the skeleton, which requires the strength of mechanical properties. High, toughness and stiffness. [0003] The compounding method of bimetallic composite circular pipes is generally made in the following two ways. One is to mechanically compound two metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D13/02C21D1/18C21D6/00C21D9/08C22C38/02C22C38/04C22C38/42C22C38/44C22C38/46B22C3/00B21C37/06
CPCB22D13/02B22C3/00C21D1/18C21D9/085C21D6/004C21D6/008C21D6/005C22C38/02C22C38/04C22C38/44C22C38/46C22C38/42C22C38/005B21C37/06
Inventor 刘强曾代忠
Owner 山西昌达盛精密铸造有限公司
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